Stationed on a windswept headland on an island in Auckland's Hauraki Gulf, Half Glass hugs the contours of a coastal hillside, a slender perpendicular glass which disappears in profile and re-forms in its own shadow. The sculpture abstracts the proverb: ‘A glass half empty or glass half full?', and is itself half glass and half air, a technically 'impossible' form. Negotiating with the physical and philosophical properties of presence and absence, it interacts with the enviroment, recording the landscape, seascape and people, framed in the void and reflected in the margins. As light values and conditions change, images layer on top of one another, bringing into focus unexpected details that might otherwise be overlooked in a panoramic Island scene.